Chemical Engineering - Chemical Engineering Basics

16. 

Temperature profile along the length of a gas-gas counter flow heat exchanger is correctly represented by

A.
B.
C.
D.

Answer: Option A

Explanation:

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17. 

Metal shots used in shot blasting are made of

A. stellite
B. steel
C. bronze
D. lead

Answer: Option B

Explanation:

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18. 

At the point of boundary layer separation in fluid flow, the

A. shear stress is maximum.
B. velocity gradient is flat.
C. density variation is maximum.
D. shear stress is zero.

Answer: Option A

Explanation:

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19. 

Brinell Hardness Number (BHN) for talc is approximately in the range of

A. 1-5
B. 20-30
C. 100-150
D. 200-250

Answer: Option B

Explanation:

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20. 

A spring material should have low

A. elastic limit
B. deflection value
C. fatigue resistance
D. none of these

Answer: Option D

Explanation:

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